Universal woodworking machine table



Ma 24, 1949. H. L. TREBERT, JR

UNIVERSAL WOODWORKING MACHINE TABLE 3 Sheets-Sheet Filed Sept. 21, 1943 ,INVENTOR. H ENRY- L.TREBERT JR.

Ararat I May 24, 1949. H. TREBERT, JR 2,471,014

UNIVERSAL WOODWORKING MACHINE TABLE Filed Sept. 21, 1943 5 Sheets-Sheet? /3 37 a '38 g 1 a 4 4 E a 0 33 40A 40B F a INVENTOR.

HQIRY L.TRBERT JR.

H. L. TREBERT, JR

UNIVERSAL WOODWORKING MACHINE TABLE May 24, 1949.

3 Shee ts-Sheet 3 Filed Spt. 21, 1943 17 i3 11 at 20 [III/I,

INVENTOR.

v HE HRY LFREBERT JR.

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FIG '4' Patented May 24, 1949 UNITED STATES PATENT OFFICE UNIVERSAL WOODWORKING MACHINE TABLE 2 Claims.

This invention relates to wood working machines and especially to pattern making machines and the invention has for its principal object to provide a new and improved construction which provides for the rotation. of the work in angular planes to the axis of rotation of the tool operating on the work.

Another object of this invention is to provide a universal adjustment for the operating tool relative to any of the angular positions of the stationary or rotating work table.

A further object of this invention is to provide a horizontal as well as vertical adjustment of the work tool in combination with the universal adjustment thereof relative to the center of rotation of the angularly adjustable work supporting table.

These and other objects of this invention will be readily apparent from the detailed description thereof which follows, reference being had to the accompanying drawing in which Figure 1 is a front elevation of the machine.

Figure 2 is an end elevation thereof.

Figure 3 is a top plan view thereof with a portion of it in section.

Figure 4 is a detail vertical sectional view taken on the line 4-4 in Figure 1.

Figure 5 is a horizontal sectional view taken on the line 55 in Figure 4.

The pattern making machine forming the subject matter of this invention comprises a base I which has provided at its top the bed 2 for the adjustable support of the vertical upright 3 and has provided to one side of the bed 2 the work table support 4. Spacedly arranged on top of the latter are a pair of trunnion bearings 5, 5 in which are journaled the trunnions 6 and l for the support of the yoke 8 between them. See Fig. 4. An extension 6A of the trunnion 6 has keyed thereto the segmental worm gear 9. A worm H3, mounted in the bracket I, meshes with this segmental worm gear and is carried by a suitable shaft which is adapted to be rotated by the hand wheel I2 for the angular adjustment of the yoke 8 between the trunnion bearings 5, 5.

In the yoke 8 is supported the spindle housing [3 and suitable roller bearings l4 and I5 rotatably support the spindle l6 centrally thereof. Directly above the yoke 8 the spindle It has keyed thereto the worm wheel I! and above it the circular work table l8.

An extension 1A of the trunnion I has adjustably keyed thereto the bracket l9 which has journaled therein the shaft 29. This shaft carries a worm 2| which is adapted to mesh with the worm wheel IT, and the hand wheel 22 which is carried by the shaft rotates the worm wheel H to provide for the manual rotation of the work table l8.

To make the work table motor driven, the

bracket I9 is moved outwardly on the trunnion extension 1A until the worm 2| is out of mesh with the worm wheel H. The work table is then free to rotate so that the spindle l6 may be rotated by means of the pulley 23 which is keyed to the end thereof below the removable support 24 on the end of the spindle housing l3. A motor 25 carried by this removable support drives a pulley 26 thru a suitable reduction gearing 21 and a belt 213 connects the pulley 26 with the pulley 23 for the rotation of the spindle l6 and the work table l8 supported on top thereof.

The work table is thus adapted to be rotated by hand by means of the hand wheel 22 to have the work supported thereon moved radially and set in any position in the plane of the work table; or the work table may be power driven to rotate the Work in the plane of the work table. For both of these operations the work table may be placed-intoangular positions by means of the hand wheel l2 which tilts the table in the trunnion bearings 5, 5 as above described.

The tool operating on the work supported on the work table is held in the chuck 3!] on the end of the-spindle 3!. The latter is mounted in the head 32 which is adjustably clamped to the end of the hollow arm 33 and is driven by suitable spiral gears 34 and 34A from the driving shaft 35, Fig. 3. This shaft extends thru the hollow arm and carries at its other end the cone pulleys 36. A motor 31 suitably mounted on the support 31A on top of the hollow arm carries a similar set of cone pulleys 38 so that a belt 39 connecting the two sets of cone pulleys can transmit the power from the motor at variable speeds to the tool held by the chuck 30.

The arm 33 is slidably mounted in the head 40 which is adjustably clamped to the support 4| for angular adjustment on the upright 3. A feed screw 43 is mounted to rotate in the outer end of the arm 33 is threaded thru the head 40 and extends to the motor support 31A. Within the head the feed screw carries a suitable bevel gear 33 (Fig. 3) for mesh with the bevel pinion 45 and rotation thereby. A hand wheel 4'6 is adapted to rotate the bevel pinion and with it the feed screw 63 so as to slide the hollow arm 33 in the head 49 for lateral adjustment of the tool held in the chuck 33. The arm 33 is adjustably held clamped in place in the head 40 by means of a pair of collars 40A and 4613 which are threaded on the head so as to force the conical and contractible sleeves 40C into the head into gripping. engagement with the arm 33. See Figure 3. The angular adjustment of the head onthe'support ll is made possible by the engagement of the clamping bolts 41 carried by the head with the segmental slots 48 (Fig. 2) provided in the support 4| so that the arm 33, and with it the drive for the tool held in the chuck 30, may

3 be set angularly in a vertical plane relative to the work table l8.

Vertical adjustment of the tool is provided by the movement of'the support 4 I on theupright'S; For this purpose the support is guided on the upright by the rails 49, 49 and has threaded therethru the feed screw 59. The latter is mounted to rotate within theupright andjcarries abevel gear which meshes with the bevel pinion 5lA-..v

near the bottom of the upright. A.hand wheel 52 is adapted to rotate the bevel pinion 51A and with it the feed screw 50 for:movement:of,:the.:.

is mounted so that rotation of thefeed screw: 54 V by means of one of the hand Wheels 55 causes'the base '56 and with it the upright 3 to move hori- Zontally relative to the work table I81 andlaterally spaced therefrom.

The upright 3' is pivotally supported'onlthe base 56 ancl'clamping screws 5'! at the bottom of the.

upright engage the segmental slots 58in the base to adjustably clamp the uprightin any angular position on the base and thus. hold the arm 3! withits toolholder in any desired horizontal angular position over the work: table [8.

Adjustment of the tool may thusbe efiected on'the end of the arm33bystherrotationiofl'thez; head 3! thereon: The tool "may be moved"-in";andr:

out over the work table by theoperationv of the arm in the head and then angular-1y adjusted in avertical plane by the rotatable mounting of the head 89 on the support 4!.- Vertical'adjusta ment is secured by the-up and down movement of the head 32 on the upright 3 by means-of the feed screw 59 andhorizontally angular 31d? justmen-t of the arm is secured by therotatable support of the upright 3 on the base 56. Finally, lateral adjustment of the arm in any of "its adjustable positions is secured by thefeed screw- 54 which operates to move the upright 3 on the bed-2.

A universal adjustment of the tool for operation onthe work piece is thus combined with the support of the work piece on arotatable' work table which is angularly adjustable and can be rotated inrany of its angular positions .to cooperate. with themovement of the tool to increase the speed with which the work may be operated uponrandn to provide the proper surface finish on the work by the tool.

I claim:

1. In a wood working machine, a base having a top formed with anopening, bearings at opposite sides of the opening, a yoke over the opening having trunnions projecting horizontally from opposite sides and rotatably mountedthrough the bearings, a tubular housing mounted vertically through said yoke and tiltably mounted by the trunnions, a spindle extending vertically through the housing and rotatable therein, a work table upon the upper end of said spindle, a Wormgear carried by one trunnion, a bearing bracket car;- ried by said base, a shaft rotatablycarried by Number Name Date 135,593 Rykert Feb. 4, 1873 3671782 Brown Aug. 9, 1887 376,815 Coleman Jan. 24, 1888 4130,524 Snyder Aug. 9, 1892 558,005 Van-I-Iouten Apr. 7, 1896 620,313 Hanscom. Feb. 28, 1899 650,644 Koeppen May 29, 1900- 67'6,987. Langbein June 25, 1901 686,547 Seymour Nov. 12, 1901 1,107,221 Miller et a1 Aug. 11, 1914 1,181,113 Conradson May 2, 1916 1,193,525 Dosch Aug. 8, 1916 1,316,221: Conradson Sept. 16, 1919 1,517,073 Kent Nov. 25, 1924 0' 1,640,832 Jacobwitz Aug, 30, 1927' 1,685,572" Onsrud Sept. 25, 1928 1,718,275. Carter June 25, 1929 1,733,518 Snover Oct. 29, 1929 1,850,773: Rueger' Mar. 22, 1932: 1,852,387 Wieden Aug. 5, 1932 2,170,687 Johnson Aug. 22, 1939 2,258,828" Trebert Oct. 14, 1941 2,318,791"- Mueller May 11, 1943 To FOREIGN PATENTS Number: Country Date 156,188: Switzerland Oct. 1, 1932 the bearing bracket and provided with a worm meshing with the worm gear and with a hand wheel for rotating the shaft and causing rotation of. the'trunnions to.:tilt thehousingand the spindle' and hold the work table'in an angularly adjusted position, a motor mounted at a side of the lower end position of said housing, means for transmitting rotary motion from said motor to said spindle, a gear carried by said work table, a bearingbracket .carried by the second trunnion and shiftable towards and away from the gear, and: a shaft. rotatably carried by the bearing bracket and carryin a hand wheel and a worm for meshing with the gear of the table and rotating the table.

2. In. awood working machine, a base, bearing-s carried by said base, a vertical housing between said bearings, trunnions projecting from opposite sides of the housing through said bearings and mounting the housing. for vertical tilting movement, a spindle extending vertically through the housing and rotatably. mounted, a work tableat theupper end of said spindle, a motor at the lower end of said housing, means for transmitting rotary. motion from said motor to said spindle, a bearing bracket carried and sliiftab'le along one trunnion, a manually rotatable shaft carried by said. bearing bracket and shiftable-with the said bearing bracket into and outof position for-imparting rotary motion to the work=table andthe-spindle, a gear carried by the second trunnion, a bearing bracket carried :by said base, anda shaft rotatably carried by the last mentioned bearing bracket and carrying a worm meshing with'said' gear for rotating the trunnions and tilting the spindle to move the work table to an angularly adjusted'position.

HENRY L. TREBERT, JR.

REFERENCES CITED The' follow-ing references are of record in the file of this patent:

UNITED STATES PATENTS 

